The new SIGMA 16mm F1.4 DC DN Contemporary is the world’s first interchangeable lens for mirrorless Sony E-mount cameras in the APS-C format to offer a 24mm focal length (35mm equivalent) and F1.4 brightness. The lens for Micro Four Thirds offers a 32mm focal length (35mm equivalent) with the same f-number of 1.4. This is the large-diameter wide-angle lens for which mirrorless camera users have been waiting. Developed to feature a lightweight, compact package for everyday use, SIGMA DN lenses for mirrorless cameras deliver superior performance covering the key focal lengths. The new lens builds on the success of the 30mm F1.4 DC DN Contemporary, which SIGMA released in 2016 as the first in a new series of prime lenses for mirrorless cameras. The 16mm F1.4 DC DN Contemporary also combines F1.4 brightness with top-level optical performance. Sharing its development concept with the SIGMA 30mm F1.4 DC DN Contemporary, the 16mm F1.4 DC DN Contemporary features a lens structure with 16 elements in 13 groups and includes the finest materials. This lens effectively minimizes optical aberrations and offers superb resolution at wide-open aperture and throughout the aperture range. The optical design and stepping motor deliver smooth autofocus during video shooting, while the mount features a special sealing for a dust and splash resistant structure.